What is p0 code 1336 - Cars & Trucks

DTC P1336 Crankshaft Position (CKP) System Variation Not Learned
The crankshaft position system variation learning feature is used to calculate reference period errors caused by slight tolerance variations in the crankshaft, and the crankshaft position sensors. The calculated error allows the PCM to accurately compensate for reference period variations. This enhances the ability of the PCM to detect misfire events over a wider range of engine speed and load.

The PCM stores the crankshaft position system variation values after a learn procedure has been performed. DTC 1336 set indicates that the crankshaft position system variation values have not been stored in the PCM and the crankshaft position system variation learn procedure must be performed. The learn procedure is required after the following service procedures have been performed, regardless of whether or not DTC P1336 is set:

• PCM replacement.

• PCM reprogramming.

• Engine replacement.

• Crankshaft replacement.

• Crankshaft position sensor replacement.

• Any engine repair that disturbs crankshaft to crankshaft position sensor relationship. DTC P1336 Crankshaft Position (CKP) System Variation Not Learned The crankshaft position system variation learning feature is used to calculate reference period errors caused by slight tolerance variations in the crankshaft, and the crankshaft position sensors. The calculated error allows the PCM to accurately compensate for reference period variations. This enhances the ability of the PCM to detect misfire events over a wider range of engine speed and load. The PCM stores the crankshaft position system variation values after a learn procedure has been performed. DTC 1336 set indicates that the crankshaft position system variation values have not been stored in the PCM and the crankshaft position system variation learn procedure must be performed. The learn procedure is required after the following service procedures have been performed, regardless of whether or not DTC P1336 is set: • PCM replacement. • PCM reprogramming. • Engine replacement. • Crankshaft replacement. • Crankshaft position sensor replacement. • Any engine repair that disturbs crankshaft to crankshaft position sensor relationship.

Crankshaft Position System Variation Learn
Caution: Before performing the Crankshaft Position System Variation Learning Procedure always set the vehicle parking brake and block the drive wheels in order to prevent personal injury. Release the throttle immediately when the engine starts to decelerate in order to eliminate over revving the engine. Once the learn procedure is completed, the control module will return engine control to the operator and the engine will respond to the throttle position.

Set the parking brake.
Block the drive wheels.
Ensure the hood is closed.
With the scan tool, monitor for DTCs. If a DTC is set, refer to Diagnostic Trouble Code (DTC) List/Type before proceeding.
Start the engine and allow engine coolant temperature to reach at least 70°C (158°F).
Turn OFF the ignition.
Select and enable the crankshaft position variation learn procedure with the scan tool.
Start the vehicle.
Apply and hold the service brake pedal firmly.
Ensure the transaxle is in park.
Increase accelerator pedal position until the fuel cutoff is reached at 5150 RPM. Immediately release the accelerator pedal after fuel cutoff is reached.
The crankshaft position system variation compensating values are learned when the RPM decreases back to idle. If the procedure terminates.

Observe DTC status for DTC P1336.
If the scan tool indicates that DTC P1336 ran and passed, the crankshaft position system variation learn procedure is complete. If the scan tool indicates DTC P1336 failed or not ran, check for other DTCs. If no DTCs other than P1336 are set, repeat the crankshaft position system variation learn procedure as necessary. Crankshaft Position System Variation Learn Caution: Before performing the Crankshaft Position System Variation Learning Procedure always set the vehicle parking brake and block the drive wheels in order to prevent personal injury. Release the throttle immediately when the engine starts to decelerate in order to eliminate over revving the engine. Once the learn procedure is completed, the control module will return engine control to the operator and the engine will respond to the throttle position. Set the parking brake. Block the drive wheels. Ensure the hood is closed. With the scan tool, monitor for DTCs. If a DTC is set, refer to Diagnostic Trouble Code (DTC) List/Type before proceeding. Start the engine and allow engine coolant temperature to reach at least 70°C (158°F). Turn OFF the ignition. Select and enable the crankshaft position variation learn procedure with the scan tool. Start the vehicle. Apply and hold the service brake pedal firmly. Ensure the transaxle is in park. Increase accelerator pedal position until the fuel cutoff is reached at 5150 RPM. Immediately release the accelerator pedal after fuel cutoff is reached. The crankshaft position system variation compensating values are learned when the RPM decreases back to idle. If the procedure terminates. Observe DTC status for DTC P1336. If the scan tool indicates that DTC P1336 ran and passed, the crankshaft position system variation learn procedure is complete. If the scan tool indicates DTC P1336 failed or not ran, check for other DTCs. If no DTCs other than P1336 are set, repeat the crankshaft position system variation learn procedure as necessary.